Cable grip or clutch.



(No Model.)

l/Vii u eons Patented Feb. l2, l90l. M. DRUBESH.

CABLE GRIP DR CLUTCH.

(Application filed Oct. 13, 1900.)

I awemkoz UNETED STATES tries,

A'rNT CABLE GRIP OR CLUTCH.

SEECIFIGATION formingpart of Letters Patent N 0. 667,688, dated February 12, 1901.

Application filed October 18, 1900. Serial No. 32,977. (No model.)

T0 (0 whom it may concern.-

Be it known that I, MATHEW DROBESH, a citizen of the United States, residing at Hackett, in the county of \Vashington and State of Pennsylvania, haveinvented new and useful Improvements in Cable Grips or Clutches, of which the following is a specification.

This invention relates to new and useful improvements in cable grips or clutches; and its primary object is to provide a device of simple and durable construction which will promptly clamp upon or release the cable inclosed thereby.

A further object is to so construct the device that it may be readily attached to mining-cars and similar vehicles.

With these and other objects in view the invention consists in providing a plate which is curved inward at its lower edge and which is provided with an aperture within which is mounted a disk having a cam secured thereto. This cam extends into and is adapted to impart a vertical movement to a clamping-block which is secured to the plate before referred to and which is provided with suitable guides. Ears are form ed at the upper end of the plate and areadapted to receive a coupling-pin, whereby the device may be readily secured to mining-cars, &c.

The invention also consists in certain features of construction and combination of parts, which will be hereinafter more fully described and claimed, and illustrated in the accompanying drawings, showing the preferred form of myinvention, and in which Figure 1 is a perspective view of the device, showing the same clamped upon acable. Fig. 2 is a central vertical section. Fig. 3 is a face View of the clamping-block.

Referring to the drawings by numerals of reference, 1 is a plate or casting of any desired size, the lower edge of which is provided with a flange 2, having a longitudinally-extending groove 3 in the upper surface thereof. A disk eis revoluble within an aperture 5, formed within the casting at a point adjacent to the center thereof, and a cam or eccentric 6 is secured to the inner end of this disk and is revoluble within an aperture '7, formed within a clamping-block 8. The lower edge of this block is provided with a longitudinally-extending groove 9, adapted to register with the groove 3, before referred to, and a slot 10 is formed within the block and is adapted to receive a bolt 11, which engages the plate. 1 and extends through a detachable face-plate 12, arranged upon the opposite side of the clamping-block 8. A second bolt 13 is employed for clamping the plates 1 and 12 together, this bolt being preferably arranged at a point above the eccentric 6 and extending through a recess 14, formed within the upper edge of the clamping-block 8. A rectangular head 15 extends from the outer face of the disk 4, and it is obvious thata wrench, crank, or other similar tool may be readily attached thereto, and by means of the same the disk may be revolved within its bearing. A flange 16 is arranged along the upper edge of the plate 1 and is provided at one end with an extension or ear 17, having an aperture 18 therein which is in vertical alinement with a similar aperture formed Within an car 19, extending from one side of the casting 1. These apertures are adapted to receive a coupling-pin, (not shown,) whereby the clutch or grip may be readily secured to the draw-head or any other suitable part of a mining-car, the. A cable 20 normally lies between the flange 2 and the lower edge of the clamping-block 8.

When it is desired to clamp the device upon the cable, it is merely necessary to give the disk 4 a one-half turn. This will cause the eccentric 6 to swing downward, carrying the clamping-block 8 therewith and causing the lower edge thereof to clamp the cable within the groove 3 of the flange 2.

The lateral movement of the block 8, which is necessary in order to permit the eccentric to revolve within the aperture 7, is permitted by the recess let and the slot 10 within said block.

It is obvious that when it is desired to disengage the grip from the cable it is merely necessary to reverse the movement of the cocentric, and the sliding block will then be promptly raised out of contact with said cable.

If desired, rollers may be mounted within the flange 2 of the plate 1 and serve as bearings for the cable 20.

In the foregoing description I have embodied the preferred form of my invention,

ICO

though I do not wish to be understood as limiting myself thereto, as I am aware that modifications may be made therein without departing from the spirit or sacrificing any of the advantages thereof, and I therefore re serve to myself the right to make such changes as fairly fall within the scope of my invention.

Having thus described the invention, What is claimed, and desired to be secured by Letters Patent, isa 1. In a gripping mechanism, the combination with a plate, a flange at the bottom edge thereof and a face-plate spaced apart from the flanged plate; of a clamping-block disposed between the flanged plate and the faceplate, formed with transverse and longitudinal slots, bolts securing the plates together and passing through the slots in the clamping-block and means for imparting a vertical reciprocating motion to the clamping-block.

2. In a gripping mechanism, the combination with a plate, a flange at the bottom edge thereof and a face-plate spaced apart from the flanged plate; of a clamping-block disposed between the flanged plate and the faceplate, formed with a transverse slot having a vertical opening in the upper central portion thereof to allow a lateral movement of the clam ping-block; and a vertical slot in the lower central portion thereof to permit the longitudinal movement of the said block, a disk journaled in the flanged plate, an eccentric on the disk and engaging the clam pingblock and adapted to be rotated so as to impart a vertical reciprocating movement to the clamping-block.

3. In a gripping mechanism, the combination with a plate, flanges at the upper and lower edges thereof; vertical alining ears at the rear portion thereof, and a face-plate spaced apart from the flanged plate; of a sliding clamping-block disposed between the flanged plate and the face-plate, formed with a transversely-extending slot having a vertical opening in the upper central portion thereof to allow a lateral movement of the clamping-block, and a vertical slot in the lower central portion thereof to permit the longitudinal movement of the block, a disk journaled in the flanged plate, an eccentric on the disk and engaging the clamping-block and adapted to be turned so as to impart a vertical reciprocating movement to the clam ping-block.

In testimony whereof I affix my signature in presence of two witnesses.

MATHEW DROBESI-I.

WVitnesses:

ALEXANDER WAUGH, JOHAN DROBESCH. 

